Ore-concentrator.



' no. 689,252. v Patented Dec. I7, I90!.

H. UNZICKER.

ORE CONGENTRATOR. (Application fllod June 21, 1901.) (No Model.) fishnets-Sheet l.

No. 689,252. Pafented Dec. I7, I90l. H. UNZIBKEB.

.UBE GONGEN-TRATOB. (Application me Juna 21, 1901. (No Model.) 6 Sheets-Sheet 3.

v AII.

No. 689,252. Patented Dec. l7, I90I. H. UNZICKER.

ORE CONGENTBATOR.

(Application filed June 21, 1901.)

(No Model.) 6 Sheets-Sheet 5.

Q i i UNITED ST TES PATENT FFICE.

HERMAN UNZICKER, OFCHICAGO, ILLINOIS.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent 0. 689,252, dated December 1'7, 1901.

, Application filed June 21, 19o1. Serial No. 65,416. g (No model.)

To atZZ whom it may concern.-

Be it known that I, HERMAN UNZICKER, a citizen of the United States, residing atOhicago, in the county of Cook and State of Illinois, have invented a new and useful Improvementin Ore-Concentrators, of which the following is a specification.

My invention relates particularly to oreconcentrators of the class in which an endless belt or conveyer is mounted upon a frame of adjustable lateral inclination, the belt serving to receive the ore-pulp and convey the same during the washing and concentrating process.

My primary object is to provide a concen- 3 trator of this type of simple construction, easy adjustment, and efficient .operation, the concentrator being particularly adapted for use, where desired, in separating two or more ores from the same pulp and delivering them to separate receptacles.

In the preferred construction there are employed a longitudinally-reciprocable frame of adjustable lateral inclination, an endless belt mounted upondru'ins carried by said frame,

a longitudinally-.xtending driven shaft carried by said frame and having gear connection with the drum at the discharge end of the machine, a short shaft parallel to said firstnamed shaft and having its axis coincident with the axis of the pivot of said frame, said two shafts having belt connection, a transverse driving-shaft geared to said short shaft,

and cranks or eccentrics on said driving-shaft and connected by pitmen with a cross-head, which serves to reciprocate said frame.

The invention is illustrated in itspreferred' form in the accompanying drawings, in which Figure 1 represents a broken plan view of the machine; Fig. 2, a broken view in side elevation; Fig. 3, an enlarged broken vertiof the transverse driving-shaft at the head of the inac hine; Fig. 9, a broken plan view of the belt-frame and belt, showing the disposition of the pulp and water distributers and of a laterally-disposed trough for receiving the gangue and certain grades of ore; Fig. 10, a broken transverse section showing by a different view the parts last enumerated; and Fig. 11, a detached view of a pivoted divider employed.

A A represent stationary end standards firmly connected at their tops by a shaft A standard A being provided with outturned brackets A A B, a longitudinally-reciprocable transversely-tiltable frame comprising end members B and B side members B and B and shaft-stubs B and B fixed, respectively, to the end members B and B 0 C, transversely-extending levers fixedly secured to the shaft A 0 0 sets of links having pivotal connection with the ends of the members G and O and having pivotal connection also with the end members B and B of the frame B; C, a threaded adjustment-rod pivotally connected with the base of the standard A and having connection with the lever 0, being provided thereat with nuts 0 0 D, an ore-carrying belt mounted upon drums D D and rollers D all journ'aled in suitable bearings carried by the reciprocating frame B; D, a worm-Wheel fixed to the shaft of the drum D and inclosed in a housing D D", a worm-shaft for communicating motion to the i and suitably mounted upon timbers A the gear D, the same being journaled in a bear-' extending shaft having its axis coincident with the axes of the stubs B B, said shaft E being journaled in a suitable bearing on a cross member A, connecting the brackets A A said shaft being equipped with a pulley E and a bevel-gear E E a belt connecting the pulleys E E E, a transverselyextending. driving-shaft journaled in the brackets A A and equipped with a bevelgear E meshing with the gear E and having at its ends cranks or eccentrics E F F,

pitmen connected with a cross-head F having swivel connection with the stub B G, a pulp-distributerofordinary construction supported from the shaft A and side member B II, a longitudinally-extending laterally-situated water-distributing pipe which serves to wash away the gangue; H, a diagonallyrextending water-distributing pipe which separates the lighter ores from the heavier ores; 11*, a water-supply pipe carrying the pipes'H- and H and itself supported from the shaft A ,andIalongitudinally-extendinglaterallydisposed trough divided by adjustable partitions h into receptacles l I I The trough I is adjacent to the member l3 and has a'lat-' eral inclined fiance h, which projects beneath the flange f of the belt. Adjustable pivoted dividers h are connected with the flange h adjacent to the partitions 71 in a wellknown manner.

The brackets A A are secured to the end frame A by bolts, as clearly shown in Figs.

from the foregoing description.

l, 2, and 7, and said brackets are suitably slotted to receive the cross-head F and permit movement of the same, as shown in Fig. 7 The side members B B of the frame B are preferably tubular in form, and the drums D D are jonrnaled in bearings 17, supported from said tubular members by suitable clips. The rollers D are journaled in bearings b, secured to said tubular members by suitable clips. The reardrttm D is of relatively large diameter and dips into a vat G,having a transverse partition 0, Fig. 3, near its center. The lower portion of the belt is held elevated adjacent to the vat G by an idler G, journaled in bearings (1, depending" from the tubular members B B and secured thereto by suitable clips. The belt may be of any suitable material, but preferably has a rubber surface and is supplied at one side with an upturned flange f and at the opposite side with a downturned flange f.

The operation will be readily understood Power is applied at the shaft E through the medium of one of the pulleys thereon shown and is (30111- municated through the bevel-gears E EZshaf t E belt E shaft E, cone E, belt E and wormwheel D to the drum D At the same time longitudinal reciprocation of the frame B is caused by the pitmen F F,operated by cranks E The frame B is adjusted, as desired, to give the properlateralinclination to the belt through the medium of the hand-wheels C 0 and when so adjusted the side of the belt having the upturned flange is higher than the opposite side, as shown in Fig. 10. The hearframe which receive the stubs B B are not sufficiently close to prevent said reciprocation. between shaft centers will not be destroyed by tilting the frame B, .because of the fact that shaft E is in alineinent with the center of oscillation of said frame. Ore-pulp is supplied to the belt at the distributer G in a wellunderstood manner, and as tliepulp is carried toward the foot of the machine it is struck by properly-directed currents from the Waterdistributing pipe H, which causes practically all of the free gangue to be washed into the receptacle l. The reciprocating movement of the frame B causes the relatively heavy ore to settle down into contact with the belt, while the lighter particles are washed at a more or less rapid rate toward the lower side of the belt. The lightest particles of ore will be deposited in the receptacle 1 Still another grade of ore will be deposited in the receptacle 1 and the heaviest grade or grades will be deposited in the vat G. The pipeH is of adjustable angle with reference to the side of the belt, and the water-pressure, belt inclination, and belt speed may be adjusted to secure the desired deposition of the ores. In some instances the several adjustments may be so regulated that ores of different specific gravities may be deposited in the-two receptacles of the vat G. Thus sulfurets may be-deposited in the compartment of the vat Gwhich is beneath the high side of the belt, while an ore of lower specific gravity, such as-sulfid of zinc, may be collected in the remaining compartment of said vat beneath the low side of the belt.

Changes in details of construction within the spirit of my invention may be made. Hence no limitation is to be understood from the foregoing detailed description, except as shall appear from the appended claims. Y

WVhat I claim as new, and desire to secure by Letters Patent, is

l. The combination of a stationary frame provided with bearings, a tiltable frame provided at its ends with central stubs journaled in said bearings, said bearings permittinglongitudinal movement of said tiltable frame, adj ustable means securing said tiltable frame at a given angle of transverse inclination, a belt carried by said tiltable frame, a transversely-extending shaft, means for communicating reciprocating motion from said shaft to said tiltable frame, and means for imparting motion to said belt.

2. The combination of a suitable stationary frame, a tiltable belt-frame j ournaled therein, a longitudinally-extending shaft carriedby said tiltable frame, a belt carried by said tiltable frame, gear connection between said shaft and said belt, a shaft parallel to said first-named shaft and having its axis coincident With the axis of oscillation of saidbeltframe, connection between said shafts, a transversely-extending shaft serving to com- It will be observed that the distances 7o municate motion to said second-named shaft,

cranks on said transverse shaft, and pitmen connected with said cranks and with said tiltable frame and serving to longitudinally reciprocate said tiltable frame.

3. The combination of two end standards,

a tiltable belt-frame having stubs journaledadjusted in lateral inclination through the medium of said shaft, brackets carried by one of said standards, a transverse shaft carried by said brackets, a longitudinal shaft having its axis coincident with the axis of oscillation of said frame, said last-named shaft being driven from said transverse shaft, a longitudinally-disposed shaft supported at one side of said frame and driven from the longitudinal shaft which is in alinement with the pivots of said frame, a belt carried by said frame, a drum receiving said belt and equipped with a worm-wheel, a worm-shaft and means for communicating motion from said laterallydisposed longitudinal shaft to said wormshaft.

5. In combination With a belt, atiltable beltframe comprising end members having outturned central pivotal stubs at its ends and tubular side members supported by said end members, drums supporting said belt, and bearings for the shafts of said drums, connected with said tubular side members by suitable clips.

6. The combination of a suitable stationary frame, a laterally-tiltable belt-frame journaled therein and capable of longitudinal movement, a cross-head having swivel connection with an end of said belt-frame and moving in suitable guides along said stationary frame, means for imparting longitudinal movement to said cross-head, a belt carried by said belt-frame, and means for imparting motion to said belt.

HERMAN UN ZICKER.

In presence of- D. W. LEE, ALBERT D. BACOI. 

